Use the new '_download_xml' helper in more extractors
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		@@ -1,7 +1,6 @@
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# coding: utf-8
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import re
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import xml.etree.ElementTree
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from .common import InfoExtractor
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from ..utils import (
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@@ -35,12 +34,11 @@ class SinaIE(InfoExtractor):
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    def _extract_video(self, video_id):
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        data = compat_urllib_parse.urlencode({'vid': video_id})
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        url_page = self._download_webpage('http://v.iask.com/v_play.php?%s' % data,
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        url_doc = self._download_xml('http://v.iask.com/v_play.php?%s' % data,
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            video_id, u'Downloading video url')
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        image_page = self._download_webpage(
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            'http://interface.video.sina.com.cn/interface/common/getVideoImage.php?%s' % data,
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            video_id, u'Downloading thumbnail info')
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        url_doc = xml.etree.ElementTree.fromstring(url_page.encode('utf-8'))
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        return {'id': video_id,
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                'url': url_doc.find('./durl/url').text,
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